ABC News(NEW YORK) -- Six people, including a mother and her newborn baby, were killed when a roadside bomb exploded in eastern Afghanistan on Sunday, the BBC reports.

The group was traveling home from the hospital through Khost province on the Pakistan border when the bomb exploded. Three women, two men and the newborn baby of one of the women were killed in the blast. A Taliban spokesman said the group was aware of the incident but could not immediately deny or confirm involvement, according to the BBC.

In the first six months of the year, some 1,145 civilians were killed in Afghanistan, according to the United Nations, which blames 80 percent of these deaths on insurgents.